This site displays a range of historical geological maps, sections and memoirs of Ireland, mostly from the 19th century.

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1:63 360 geological map series 1:63 360 drift series 1:10 560 geological map series Memoirs Miscellaneous sheets Longitudinal Sections, old series Longitudinal Sections, new series

Index and map viewer

Index to 1:63 360 geological maps
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Large image viewer
Zoom right into these fascinating geological map scans and navigate around to study their detail. Sample image shown to illustrate zoom feature.